1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
/* sha1.c - copied from
/usr/share/doc/libnettle-dev/examples/sha-example.c
*/
#include "rdup.h"
#include <nettle/sha.h>
int
sha1_stream(__attribute__((unused)) FILE *f, unsigned char *digest)
{
#ifdef HAVE_LIBNETTLE
uint8_t buffer[SHA1_DIGEST_SIZE + 1];
struct sha1_ctx ctx;
sha1_init(&ctx);
for (;;)
{
guint done = fread(buffer, 1, sizeof(buffer), f);
sha1_update(&ctx, done, buffer);
if (done < sizeof(buffer))
break;
}
if (ferror(f))
return -1;
sha1_digest(&ctx, SHA1_DIGEST_SIZE, digest);
#else
int i;
for(i = 0; i < SHA1_DIGEST_SIZE; i++) {
digest[i] = '\0';
}
#endif /* HAVE_LIBNETTLE */
return 0;
}
|